Hi Bob
I'm hoping that the maths is correct too! Using the method recommended on the mayhem a few months ago regarding how to work out your model's weight from the original vessel, the X1 should weigh a maximum weight of 56lbs full load. I think he has decided to ballast the hull to approx 45lbs to what we are estimating to be the light load waterline.
Dad has almost completed the initial skinning of the starboard lower hull, the hull shape has really come out now, you can feel the subtle lines that you can see on the ship's drawings.
Hopefully by this time next weekend he will have finished the initial skinning, at the moment it looks like a modern nuclear submarine!!!